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Reports on Observations of the Total Solar Eclipse of December 22, 1870
United States Naval ObservatoryBenjamin Franklin Sands
其他書名
Conducted Under the Direction of Rear Admiral B.F. Sands, U.S.N., Superintendent ...
出版U.S. Government Printing Office, 1871
URLhttp://books.google.com.hk/books?id=kDYAAAAAQAAJ&hl=&source=gbs_api
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